Projects per year
Floods in catchments affected by historical metal mining result in the remobilisation of large quantities of contaminated sediment from floodplain soils and old mine workings. This poses a significant threat to agricultural production and is preventing many European river catchments achieving a ‘good chemical and ecological status’, as demanded by the Water Framework Directive. Analysis of overbank sediment following widespread flooding in west Wales in June 2012 showed that flood sediments were contaminated above guideline pollution thresholds, in some samples by a factor of 82. Most significantly, silage produced from flood affected fields was found to contain up to 1900 mg kg− 1 of sediment associated Pb, which caused cattle poisoning and mortality. As a consequence of climate related increases in flooding this problem is likely to continue and intensify. Management of contaminated catchments requires a geomorphological approach to understand the spatial and temporal cycling of metals through the fluvial system.
|Number of pages||16|
|Journal||Science of the Total Environment|
|Early online date||23 Jan 2014|
|Publication status||Published - 01 Apr 2014|
- metal mining
- climate change
- Central Wales Orefield
FingerprintDive into the research topics of 'Flood-related contamination in catchments affected by historical metal mining: an unexpected and emerging hazard of climate change'. Together they form a unique fingerprint.
Person: Teaching And Research
- 1 Finished
Impacts of hydrological variations on material transfers through the river estuary transition zone
Natural Environment Research Council
01 Mar 2010 → 28 Feb 2013
Project: Externally funded research